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Q:

Consider the electromagnetic radiations having wavelengths 200 nm, 500 nm and 1000 nm. Which wavelength (s) of the following can make visual sensation to a human eye?

A) 200 nm and 500 nm	B) 500 nm and 1000 nm
C) 500 nm only	D) 200 nm and 1000 nm

Answer & Explanation Answer: C) 500 nm only

Explanation:

Visual image of human eye is 390-700 nanometer. So, approximate value is 500 nanometer only.

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Filed Under: Physics
Exam Prep: Bank Exams

Q:

If $\frac{\cos α}{\cos β} = m a n d \frac{\cos α}{\sin β} = n,$ then the value of $(m^{2} + n^{2}) \cos^{2} β$ is

A) n2	B) m2
C) mn	D) 1

Answer & Explanation Answer: A) n2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If angles of measure (5y + 62°) and (22° + y) are supplementary , then value of y is

A) 16°	B) 32°
C) 8°	D) 1°

Answer & Explanation Answer: A) 16°

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

ABCD is an isosceles trapezium such that AD||BC, AB = 5 cm, AD = 8 cm and BC = 14 cm. What is the area (in cm2) of trapezium?

A) 36	B) 44
C) 88	D) 144

Answer & Explanation Answer: B) 44

Explanation:

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

Q:

If the areas of two similar triangle are in the ratio 5 : 7, then what is the ratio of the corresponding sides of these two triangles?

A) 5 : 7	B) 25 : 49
C) √5 : √7	D) 125 : 343

Answer & Explanation Answer: C) √5 : √7

Explanation:

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

Q:

If $5^{x} = 30^{- y} = 6^{z}$ , then what is the value of (xy + yz + zx)/xyz?

A) 0	B) 1
C) 2	D) 3

Answer & Explanation Answer: A) 0

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

For an amount, simple interest at the rate of interest of 12% per annum for 6 years is Rs 25920. What will be the compound interest (in Rs) on same amount at the rate of interest of 8% per annum compounding annually for 2 years?

A) 4326.3	B) 5563.4
C) 5888.6	D) 5990.4

Answer & Explanation Answer: D) 5990.4

Explanation:

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Filed Under: Simple Interest
Exam Prep: Bank Exams

Q:

A bus travels 2/5 of a total journey at its usual speed. The remaining distance was covered by bus at 6/7 of its usual speed. Due to slow speed it reaches its destination 50 minutes late. If the total distance is 200 kms, then what is the usual speed (in km/hr) of bus?

A) 20.57	B) 24
C) 28	D) 26.52

Answer & Explanation Answer: B) 24

Explanation:

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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